When you view your own profile on that date, a note under your bio wishes you a "Happy Birthday" and a delightful little animation of multi-colored balloons floats across screen (PS tap to pop them).

just type "Happy Birthday". You can add a name, an emoji, and an exclamation point, just make sure you have those two words. Balloons everywhere! But just for a few seconds. It's long enough to be ...

With iOS 10, sending a user an iMessage with the words "happy birthday" automatically sends a flood of balloons up the screen. In Apple's new iPhone 7 ad, those balloons come to life, starting ...